HAIL.SO / DISPATCH · 2026-07-24 · COMPARE
FILE: COMPARE · 6 of 6 slots

side by side.

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02

Speech to text

2 models
Rev.ai
Rev.ai Whisper Fusion
×
Speechmatics
Speechmatics Enhanced
×
$/min$0.005000$0.002150
$/min batch
Streaming
Realtime
Languagesen56+
Diarizationincludedincluded
TTFW
Verified2026-07-192026-07-19
Sourceprovider page ↗provider page ↗
03

Text to speech

4 models
Smallest.ai
Lightning v3.1
×
Cartesia
Sonic 2
×
Deepgram
Deepgram Aura 2
×
Cartesia
Sonic Turbo
×
$/1M chars$17.50$50.00$30.00$50.00
Voice qualityneuralneuralneuralneural
Voice cloning✓ included✓ included✓ included
Voice count217
Languagesen, hi, es, mr, kn, ta, bn, gu, te, ml, pa, oren, fr, de, es, pt, zh, ja, koen, es, de, fr, nl, it, jaen, fr, de, es, pt, zh, ja, hi, ko
SSML support
TTFB200ms90ms40ms
Output formatspcm, mp3, wav, ulaw, alawwav, mp3, linear16, mulaw, alaw, opus
Verified2026-07-192026-07-192026-07-192026-07-19
Sourceprovider page ↗provider page ↗provider page ↗provider page ↗